/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

var VisualMapping = require("../../visual/VisualMapping");

var zrUtil = require("static/plugins/js/zrender/lib/core/util");

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
function _default(ecModel, payload) {
    ecModel.eachSeriesByType("sankey", function (seriesModel) {
        var graph = seriesModel.getGraph();
        var nodes = graph.nodes;

        if (nodes.length) {
            var minValue = Infinity;
            var maxValue = -Infinity;
            zrUtil.each(nodes, function (node) {
                var nodeValue = node.getLayout().value;

                if (nodeValue < minValue) {
                    minValue = nodeValue;
                }

                if (nodeValue > maxValue) {
                    maxValue = nodeValue;
                }
            });
            zrUtil.each(nodes, function (node) {
                var mapping = new VisualMapping({
                    type: "color",
                    mappingMethod: "linear",
                    dataExtent: [minValue, maxValue],
                    visual: seriesModel.get("color"),
                });
                var mapValueToColor = mapping.mapValueToVisual(
                    node.getLayout().value
                );
                var customColor = node.getModel().get("itemStyle.color");
                customColor != null
                    ? node.setVisual("color", customColor)
                    : node.setVisual("color", mapValueToColor);
            });
        }
    });
}

module.exports = _default;
